scholarly journals A detailed study of cholinium chloride and levulinic acid deep eutectic solvent system for CO2 capture via experimental and molecular simulation approaches

2015 ◽  
Vol 17 (32) ◽  
pp. 20941-20960 ◽  
Author(s):  
Ruh Ullah ◽  
Mert Atilhan ◽  
Baraa Anaya ◽  
Majeda Khraisheh ◽  
Gregorio García ◽  
...  
Keyword(s):  
Molecular Simulation ◽  
Co2 Capture ◽  
Levulinic Acid ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Solvent System ◽  
Suitable Material

Choline chloride + levulinic acid deep eutectic solvent is studied as a suitable material for CO2 capturing purposes.

scholarly journals Novel Deep Eutectic Solvent Based on Levulinic Acid and 1,4-Butanediol as an Extraction Media for Bioactive Alkaloid Rutaecarpine

Processes ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 171 ◽  
Author(s):  
Yue-Yue Si ◽  
Shi-Wei Sun ◽  
Kun Liu ◽  
Yang Liu ◽  
Hai-Lin Shi ◽  
...  
Keyword(s):  
Levulinic Acid ◽  
Extraction Efficiency ◽  
Choline Chloride ◽  
Extraction Procedure ◽  
Deep Eutectic Solvent ◽  
Supermolecular Structure ◽  
Molar Ratio ◽  
Resonance Spectroscopy ◽  
Extraction Temperature ◽  
Unripe Fruits

Deep eutectic solvents (DESs) are increasingly receiving interest as a new type of green and sustainable alternative to hazardous organic solvents. In this work, a novel DES based on levulinic acid (La) and 1,4-butanediol (Buta) as an extraction media was developed for extracting the bioactive alkaloid rutaecarpine from the unripe fruits of Tetradium ruticarpum. 24 different DESs consisting of choline chloride, betaine, sugar alcohols, organic acids, amides, and sugars were prepared and tailored to test their extraction efficiency. After initial screening, a hydrophilic DES composed of La and Buta with 1:0.5 molar ratio containing 25% water was tailored for the highest extraction efficiency, followed by the optimizations of molar ratio and water content. The interaction between the molecules of La-Buta DES was investigated by nuclear magnetic resonance spectroscopy in order to confirm its deep eutectic supermolecular structure feature. The extraction conditions were optimized by single-factor experiments, including extraction temperature, extraction time, and solid-liquid ratio. The developed La-Buta DES extraction procedure was successfully applied for the analysis of rutaecarpine in Chinese patent medicines containing the unripe fruits of T. ruticarpum. The excellent property of La-Buta DES indicated its potential as a promising green solvent instead of conventional organic solvent for the extraction of rutaecarpine from the unripe fruits of T. ruticarpum, and that it can used as a sustainable and safe extraction media for other applications.

scholarly journals Recovery of yttrium and europium from spent fluorescent lamps using pure levulinic acid and the deep eutectic solvent levulinic acid–choline chloride

RSC Advances ◽  
2020 ◽  
Vol 10 (48) ◽  
pp. 28879-28890 ◽  
Author(s):  
Ioanna M. Pateli ◽  
Andrew P. Abbott ◽  
Koen Binnemans ◽  
Nerea Rodriguez Rodriguez
Keyword(s):  
Levulinic Acid ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Fluorescent Lamps

Yttrium and europium are selectively recovered from spent fluorescent lamps using levulinic acid-based solvents.

Deep eutectic solvent system based on choline chloride-urea as a pre-treatment for nanofibrillation of wood cellulose

2015 ◽  
Vol 17 (6) ◽  
pp. 3401-3406 ◽  
Author(s):  
Juho Antti Sirviö ◽  
Miikka Visanko ◽  
Henrikki Liimatainen
Keyword(s):  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Solvent System ◽  
Wood Cellulose ◽  
Pre Treatment ◽  
Mechanical Nanofibrillation

Deep eutectic solvent of choline chloride-urea was used as a sustainable pre-treatment media prior mechanical nanofibrillation of wood cellulose.

Experimental study on ethylene glycol/choline chloride deep eutectic solvent system based nanofluids

2021 ◽  
Author(s):  
Changhui Liu ◽  
Pan Jiang ◽  
Yixuan Huo ◽  
Tianjian Zhang ◽  
Zhonghao Rao
Keyword(s):  
Experimental Study ◽  
Ethylene Glycol ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Solvent System

scholarly journals Improvement of the Solubilization and Extraction of Curcumin in an Edible Ternary Solvent Mixture

Molecules ◽  
2021 ◽  
Vol 26 (24) ◽  
pp. 7702
Author(s):  
Verena Huber ◽  
Laurie Muller ◽  
Johnny Hioe ◽  
Pierre Degot ◽  
Didier Touraud ◽  
...  
Keyword(s):  
Levulinic Acid ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Curcuma Longa ◽  
Choline Chloride ◽  
Total Yield ◽  
Deep Eutectic Solvent ◽  
Solvent Mixture ◽  
Extraction Solvent ◽  
Natural Deep Eutectic Solvent

A water-free, ternary solvent mixture consisting of a natural deep eutectic solvent (NADES), ethanol, and triacetin was investigated concerning its ability to dissolve and extract curcumin from Curcuma longa L. To this purpose, 11 NADES based on choline chloride, acetylcholine, and proline were screened using UV–vis measurements. A ternary phase diagram with a particularly promising NADES, based on choline chloride and levulinic acid was recorded and the solubility domains of the monophasic region were examined and correlated with the system’s structuring via light scattering experiments. At the optimum composition, close to the critical point, the solubility of curcumin could be enhanced by a factor of >1.5 with respect to acetone. In extraction experiments, conducted at the points of highest solubility and evaluated via HPLC, a total yield of ~84% curcuminoids per rhizome could be reached. Through multiple extraction cycles, reusing the extraction solvent, an enrichment of curcuminoids could be achieved while altering the solution. When counteracting the solvent change, even higher concentrated extracts can be obtained.

scholarly journals A Comprehensive Study of CO2 Absorption and Desorption by Choline-Chloride/Levulinic-Acid-Based Deep Eutectic Solvents

Molecules ◽  
2021 ◽  
Vol 26 (18) ◽  
pp. 5595
Author(s):  
Mohaned Aboshatta ◽  
Vitor Magueijo
Keyword(s):  
Hydrogen Bond ◽  
Co2 Capture ◽  
Levulinic Acid ◽  
Choline Chloride ◽  
Deep Eutectic Solvents ◽  
Absorption Capacity ◽  
Co2 Absorption ◽  
Operating Pressure ◽  
Hydrogen Bond Acceptor ◽  
Different Temperatures

Amine absorption (or amine scrubbing) is currently the most established method for CO2 capture; however, it has environmental shortcomings and is energy-intensive. Deep eutectic solvents (DESs) are an interesting alternative to conventional amines. Due to their biodegradability, lower toxicity and lower prices, DESs are considered to be “more benign” absorbents for CO2 capture than ionic liquids. In this work, the CO2 absorption capacity of choline-chloride/levulinic-acid-based (ChCl:LvAc) DESs was measured at different temperatures, pressures and stirring speeds using a vapour–liquid equilibrium rig. DES regeneration was performed using a heat treatment method. The DES compositions studied had ChCl:LvAc molar ratios of 1:2 and 1:3 and water contents of 0, 2.5 and 5 mol%. The experimental results showed that the CO2 absorption capacity of the ChCl:LvAc DESs is strongly affected by the operating pressure and stirring speed, moderately affected by the temperature and minimally affected by the hydrogen bond acceptor (HBA):hydrogen bond donator (HBD) molar ratio as well as water content. Thermodynamic properties for CO2 absorption were calculated from the experimental data. The regeneration of the DESs was performed at different temperatures, with the optimal regeneration temperature estimated to be 80 °C. The DESs exhibited good recyclability and moderate CO2/N2 selectivity.

Efficient synthesis of a novel series of indeno-fused pyrido[2,3-d]pyrimidines using a deep eutectic solvent system comprised of choline chloride/urea

2017 ◽  
Vol 41 (7) ◽  
pp. 430-433
Author(s):  
Mohammad Hakimi Roknabadi ◽  
Mohammad Hossein Mosslemin ◽  
Razieh Mohebat
Keyword(s):  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Environmentally Friendly ◽  
Solvent System ◽  
Efficient Synthesis ◽  
Reaction Conditions ◽  
Three Component Reaction ◽  
High Yields

A series of 13 aryl indeno[2′,1′:5,6]pyrido[2,3- d]pyrimidine-2,4,6-(3 H,5 H,11 H)-triones, eight of which are new, were synthesised regioselectively in high yields by a three-component reaction of 1,3-indanedione, an araldehyde and 6-aminopyrimidin-2,4(1 H,3 H)-dione in the presence of a deep eutectic solvent comprised of choline chloride/urea (1:2) as the catalyst. The reaction conditions were mild and did not require additional catalysts. Given the inexpensive, nontoxic and recyclable nature of the deep eutectic solvent, these reaction conditions are simple to carry out and environmentally friendly.

Silver nanoparticles synthesized by laser ablation confined in urea choline chloride deep-eutectic solvent

2016 ◽  
Vol 12 ◽  
pp. 1-4 ◽  
Author(s):  
David O. Oseguera-Galindo ◽  
Roberto Machorro-Mejia ◽  
Nina Bogdanchikova ◽  
Josue D. Mota-Morales
Keyword(s):  
Silver Nanoparticles ◽  
Laser Ablation ◽  
Choline Chloride ◽  
Deep Eutectic Solvent
Sign in / Sign up

Export Citation Format

Share Document